Having a hard time...

I (29 nb)Just moved back to my childhood home where my narcissistic mother resides. I had been away from all my family for over 6 years cause of my ex and now have my 2 beautiful kids to live here with me. I have been with my current partner(35m) 6 months on the 27th and he doesnt make a lot of money but plans on going to school and get his license and its a work in progress. My parents last night after my kids and i visited my dad and came back home sprung on me that they just put a deposit and application into an apartment to move out of the house and let us rent my childhood house from them. Because he doesnt make much money shes been calling him a "project" and that hes "using" me to get out of the living situation he has with his ex due to them having a child together. It really hurts because he isnt like that and i dont know how to react.. people take time and people make mistakes and hes always helped me including helping move me over 6 hours away so we can have a future together. Im so frustrated it feels like when i was a kid back then, her controlling my life and making me feel like money is all that matters... im so freaking sad..